Glenea nigrorubricollis Lin et Yang

Lin, Meiying, Tavakilian, Gérard, Montreuil, Olivier & Yang, Xingke, 2009, Eight species of the genus Glenea Newman, 1842 from the Oriental Region, with description of three new species (Coleoptera: Cerambycidae: Lamiinae: Saperdini), Zootaxa 2155, pp. 1-22 : 11-14

Glenea nigrorubricollis Lin et Yang sp. nov.

( Figs 25–30 )

Description: Male: length: 17.5–18.2 mm, humeral width: 4.7–5.3 mm. Female: length: 16.0–23.0 mm, humeral width: 4.2–6.4 mm. Body reddish brown. Head with a white pubescent stripe on each gena, an orange stripe from antennal insertion around eye to gena on each side of frons, two small orange stripes between antennal insertions. Antennae reddish brown, with annular pale white pubescence on basal parts of antennomeres 4–11, with dark brown annulars on apical parts of antennomeres 3–11. Prothorax reddish brown, each side with a snow-white stripe adjacent to coxa. Scutellum reddish brown, circled with darker margin and with whitish pubescence on apex. Elytron reddish brown, with irregular orange pubescent maculae: a short stripe in middle of base, slightly longer than scutellum; a median rather large and transverse spot; 3–6 small spots between median spot and basal; a transverse and slightly curved stripe before apex; 3–5 spots between median spot and apical stripe. Ventral surfaces reddish brown, with several orange maculae: 1 on apical mesepisternum, mesepimeron and metepisternum; 1 on each side of apical abdominal segments 1–4. Legs reddish brown, with black hair on tibial grooves and reddish yellow hair on tarsi. Head hardly as broad as prothorax. Inferior eyelobes twice as long as (male) or subequal to (female) genae below, width subequal to (male) or slightly narrower than (female) frons. Frons trapeziform, with a median groove extending to occiput and a small groove from antennal insertion to genae, punctures fine and sparse. Antennae relative slender, longer than (male) or subequal to (female) body; scape expanded; antennomere ratio: male: 21 4 24 24

25 22 21 20 19 18 22; female: 23 4 24 24 25 22 21 19 18 16 18. Prothorax slightly narrower towards apex, very finely punctured. Elytra densely and coarsely punctured, with a black hair in each puncture, almost arranged in rows; elytra gradually narrower apically, each with 2 lateral carinae, nearly reaching apex; apex emarginated, with short marginal and sutural teeth. Legs stout, middle tibiae grooved, hind femur reaching fifth abdominal segment, first hind tarsal segment shorter than following two segments combined. Male and female claws all simple. Male terminalia ( Figs 27 a–c): Tegmen length about 3.0 mm; lateral lobes slender, narrower apically, each about 0.6 mm long and 0.1 mm wide, with a finely haired ridge at base (in ventral view), apex with moderate long setae shorter than lateral lobes; basal piece not bifurcated distally; median lobe plus median struts slightly curved, longer than tegmen (7:6); median struts about 2/3 of whole median lobe in length; dorsal plate slightly shorter than ventral plate; apex of ventral plate bluntly rounded and slightly projected; median foramen triangle elongated, acute at apex; internal sac about 3 times as long as whole median lobe, with 4 pieces of basal armature and 4 rods; each rod about 2.2 mm long, shorter than tegmen. Tergite VIII ( Fig. 28 ) slightly broader than long, apex nearly truncated, with short and sparse setae. Ventrite IX subequal to ringed part of tegmen in length. Female terminalia ( Figs 29–30 ): Spermathecal capsule composed of an apical lobe and a stalk, apical lobe oblong, without pointed apex, stalk about twice of apical lobe in length. Tignum shorter than abdomen.

Diagnosis. Differs from G. rubricollis in having orange stripes on frons; female antennae subequal to body length, punctures on elytra denser, and different antennomere ratio.

Etymology. Because it is similar to G. rubricollis but much darker in colour.

Remarks. This species was misidentified as G. rubricollis in the last decades. Besides the characters mentioned in “Diagnosis”, G. nigrorubricollis is distinct from G. rubricollis in: 1. third antennomere subequal to fourth and eleventh longer than eighth in male; scape shorter than fourth in female; 2. punctures on elytron deeper and denser; 3. frons narrower, narrower than to slightly broader (male) or slightly broader than (female) inferior eyelobe; 4. Inferior eyelobe longer than (male) or subequal to (female) gena below.

Distribution. China: Guangdong.

Specimens examined. Holotype, 3, China, Guangdong, Mt. Dinghushan, 1964. VII.8, leg. Jiesheng Zhang (SYSU, Ce-002402); paratypes: Guangdong: 2 3 4 Ƥ, Mt. Dinghushan, 1962. VI.8 / 1963. VI.6/ 1963. VII.2 / 1965.VII, leg. Siming Fang, Yunai Ling, Yongjian Liang (SYSU, Ce-002400-01 / Ce-002403- 06).

Figures

FIGURES 25 – 26. Habitus, G. nigrorubricollis Lin et Yang sp. nov. 25. holotype, male, from Guangdong. 26. paratype, female, from Guangdong. a. ventral view. b. lateral view. c. dorsal view. h. head, frontal view. L. label.

FIGURES 27 – 30. Terminalia of G. nigrorubricollis Lin et Yang sp. nov. 27. male genitalia. a. ventral view. b. lateral view. c. dorsal view. 28. tergite VIII and ventrites VIII & IX in ventral view. 29 – 30. spermathecal capsule. Scale 1 mm.